What does the term "load calculation" refer to?

The term "load calculation" specifically refers to the process of determining the electrical demand for a building. This process is crucial for ensuring that the electrical system is appropriately designed to handle the anticipated load without being overloaded. It involves assessing various factors, such as the types of appliances and equipment that will be used, their respective power ratings, and the peak usage times.

Accurate load calculations help in selecting the right size for electrical panels, conductors, and transformers, ensuring that the electrical system operates safely and efficiently. It takes into consideration not only the total demand but also factors such as diversity and demand factors that can affect overall load requirements.

The other concepts, while related to electrical systems, do not define load calculation directly. Analyzing electrical circuit efficiency pertains more to how well the system converts electrical energy into useful work. Assessing potential electrical hazards focuses on safety risks within electrical installations, and estimating energy savings from upgrades deals with evaluating how improvements to equipment or systems can reduce energy consumption. Each of these aspects is important in the broader context of electrical engineering and installation, but they do not encompass the specific definition of load calculation.